Northern Adriatic Bryozoa From the Vicinity of Rovinj, Croatia

Abstract

One hundred six species of Bryozoa collected from the northern Adriatic in the vicinity of Rovinj, Croatia, are distributed among the orders Ctenostomata (8 species), Cheilostomata (79 species), and Cyclostomata (19 species). Ctenostomes are underrepresented in the collections relative to the two orders with calcified colonies. Five of the cheilostome species are new: Hagiosynodos hadros n. sp., Schizomavella subsolana n. sp., Cellepora adriatica n. sp., Celleporina siphuncula n. sp., and Rhynchozoon revelatus n. sp. (previously referred to as Rhynchozoon sp. II Hayward). Seven species named by Heller (1867) are stabilized by selection of lectotypes (Beania hirtissima, Adeonella pallasii, Hagiosynodos kirchenpaueri, Exidmonea triforis, Crisia recurva) and neotypes (Mollia circumcincta, Schizomavella cornuta) from Heller's collection in the University of Innsbruck Institute of Zoology. Lectotypes are designated for the Adriatic species Hippoporina lineolifera (Hincks, 1886) and for Schizomavella mamillata (Hincks, 1880). Beania cylindrica (Hincks, 1886) and Schizoporella asymetrica (Calvet, 1927) are recognized as species rather than as subspecific units. The species-rich cheilostome genus Schizoporella Hincks, 1877, which contains some of the most widely known fouling bryozoans, is designated a nomen protectum. The species name Smittina cheilostoma (Manzoni, 1869) is preserved as established usage.

The identity of the invasive fouling bryozoan Watersipora subtorquata (d’Orbigny) and some other congeneric species

“…Examination of type specimens has revealed that the holotype of W. edmondsoni is synonymous with W. subtorquata, and that two species previously synonymised under W. subtorquata and W. subovoidea belong to distinct species: Watersipora atrofusca (Busk, 1856) and Watersipora subatra (Ortmann, 1890 The lack in Watersipora of diagnostic structures such as avicularia and ooecia that are often used in cheilostome taxonomy has led to the use of morphological and morphometric characters of the frontal shield, orifice and operculum to identify species in the genus (Soule & Soule 1975;Seo 1999;Ryland et al 2009). Six species-W. cucullata, W. arcuata, W. atrofusca, W. bidentata, W. nigra and W. platypora-have an orifice with the sinus almost square or rectangular in shape (see Okada & Mawatari 1937;Banta 1969a;Seo 1999), while W. complanata is distinct in having an orifice with a straight proximal edge lacking a sinus (Hayward & McKinney 2002). The other six species-W. aterrima, W. mawatarii n.…”

Alien species in the Mediterranean Sea by 2010. A contribution to the application of European Union’s Marine Strategy Framework Directive (MSFD). Part I. Spatial distribution

“…It has been subsequently found in many European seas (DYRYNDA et al, 2000). The alien status of Bugula fulva is supposed based on its patchy occurrence nearly restricted to harbours (HAYWARD & MCKINNEY, 2002).…”

Checklist of Bryozoa on the coasts of Turkey

“…While the distribution of M. buski was restricted in the Gulf of Mexico, M. cereoides was recorded in the Atlantic, the Mediterranean, Europe, and North Africa. It was found on Posidonia oceanica rhizomes collected from Cyprus coastal waters (Koçak et al, 2002) and it is probably considered as an endemic species (Hayward and McKinney, 2002).…”